De periodieke ontwikkeling van Narcissus pseudonarcissus L. Authors Huisman, E. Hartsema, A.M. Publication Date Jan 01, 1933 Source Wageningen University and Researchcenter Publications Keywords Amaryllidaceae Growth Ornamental Plants Plant Development Amaryllidaceae Groei Plantenontwikkeling Sierplanten Language Dutch License Unknown External links Full record on research.wur.nl